I no longer work there, but back in the early 10s IBM were allowing a lot of management and a few engineers to move to macs. Their thinkpad business had been s

I no longer work there, but back in the early 10s IBM were allowing a lot of management and a few engineers to move to macs. Their thinkpad business had been spun off, the thinkpad exclusivity contract had run out, and IBM were in a "we already give too much money to MS" mood at the time. No idea how far that went. They also had a RHEL workstation-based distro you could put on your thinkpad (with a few tens of thousands of users on that IIRC), or if you were particularly adventurous, a 'layer' that could be installed on Ubuntu (that had a few thousand users) or Debian(I was one of 22 people doing that at the time!))